SYMPOSIUM WATER SCARCITY: Challenges for Agriculture ACS NATIONAL MEETING in SAN DIEGO, CA AUGUST 25, 2019  “Water scarcity is one of the greatest challenges of the twenty-first century.” FAO 2017 Agriculture is both a source and a victim of water scarcity. Currently half of the world’s population is living in areas that experience water scarcity for at least one month a year; about 70% of global water withdrawals are already allocated to agriculture and livestock production, and a third of the world’s groundwater systems are already in distress. What will happen with a growing food demand and...